The calculated distance (air line) between Futog and Sremska Mitrovica is approximately 19 miles respectively 30 kilometers.
By car or train, the actual journey to Sremska Mitrovica is certainly longer, as only the direct route (as the crow flies) between Futog and Sremska Mitrovica has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles